150 Warren Rd, San Mateo, CA 94401 Property Records

San Mateo County property record for 150 Warren Rd, San Mateo, CA 94401

Property Summary

Property Type	Single Family Home
Details	4 bd · 3 ba · 2,124 sqft · built 1930
Lot Size	0.142 acres (6,184 sqft)
Owner	2 Company Names on File
Last Sale	$1,725,000 (May 2007)
Tax Bill	$32,027 (2025)
Deeds & Mortgages	Dec 2020 Mortgage
Flood Zone	Zone X (minimal risk)
APN	`032-081-040`

Property Details

APN / Parcel Number

Primary APN	`032-081-040`

Interior

Bedrooms	4 Beds
Full Baths	3 Baths
Total Rooms	10 Rooms
Stories	1 Story
Building Area	2,124 sqft Living Area
Gross Area	3,452 sqft
1st Floor Area	1,783 sqft
Basement Area	912 sqft
Finished Basement	341 sqft
Unfinished Basement	571 sqft
Family Room	Family Room
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1930
Effective Year Built	Effective 1930
Architectural Style	Tudor
Exterior Material	Stucco
Construction Type	Frame
Roof Material	Wood Shingle
Lot Area	6,184 sqft (0.142 acres)
Lot Dimensions	122 ft deep x 50 ft wide
View / Lot	Alley
Garage Type	Basement
Garage Area	470 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central
Sewer	Municipal
Water Source	Commercial

Location & Zoning

Street Address	150 WARREN RD
City	SAN MATEO
State	CA
Zip	94401-3720
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R1000A
Legal Description	LOT 30 BALDWIN HOWELL SUB RSM E/23 CITY OF SAN MATEO
Legal Subdivision	BALDWIN HOWELL SUB
Legal Lot Number	30
Jurisdiction	SAN MATEO CA
Township / Civil Division	SAN MATEO
Census Block Group	1
Census Block	1000
Census Tract	605800

Owner

Source: San Mateo County records · APN 032-081-040

Assessment roll updated July 15, 2026 · Last verified July 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	2 Company Names on File
Mailing Address	150 WARREN RD, SAN MATEO, CA 94401-3720
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Verified Names on Deed
Last Sale	May 11, 2007 · Amount on Record
Deed Sale	May 11, 2007 · Amount on Record
Deed Document Number	200773202
Last Transfer Date	Apr 23, 2010
Transfer Doc	0000046561
Record Updated	Sep 20, 2026

December 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SAN MATEO CA
Property Address	150 WARREN RD, SAN MATEO, CA 94401-3720
Transaction Type	Mortgage
Record Updated	Feb 05, 2021
Title Company	OLD REPUBLIC TITLE CO

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	150 WARREN RD, SAN MATEO, CA 94401-3720

Mortgage

Document Number	0000146486
Date	Dec 16, 2020
Instrument	2020-146486

Lender

Name	FIRST REPUBLIC BANK
Type	Bank
Address	SAN FRANCISCO, CA 94111

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Jan 01, 2051

Interest

Rate Type	Adjustable Rate
Rate	2.95%
Type Change Date	Jan 01, 2031
Change Frequency	Annually
Min Rate At Change	2.95%
Max Rate At Change	10.9%
Index	1-Year CMT
Max Rate	10.9%

Tax Assessment & Valuation

Source: San Mateo County records · Assessment roll updated July 15, 2026 · Last verified July 2026

Property Jurisdictions

Type	Name
State	California
County	San Mateo County
Municipality	San Mateo City
Elementary School District	San Mateo-Foster City Elementary School District (KG - 08)
Secondary School District	San Mateo Union High School District (09 - 12)

Tax Bill & Assessment History

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$2,570,520 (+2%) Land $1,178,673 Building $1,391,847
2025	$32,027.00 (-0.34%) Homeowner's exemption	$2,520,119 (+4.04%) Land $1,155,562 Building $1,364,557
2023	$32,135.00 (+5.78%) Homeowner's exemption	$2,422,263 Land $1,110,691 Building $1,311,572	$2,961,630
2022	$30,379.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, San Mateo County (06081C), updated September 10, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060816058001, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026

Flood

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it
Nearby Flood Policies	3 in force
Nearby Flood Claims	1 (2012)
Claims Outside the SFHA	1 of 1
Most Recent Claim	Mar 2012 · rainfall accumulation

Wildfire

Wildfire Risk	Not rated no burnable land within ember reach

Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.

Internet Providers

Source: FCC Broadband Data Collection, availability as of December 31, 2025 · sampled at 713 locations within half a mile · Last verified October 2026

Provider	Max Down / Up (Mbps)
AT&T Fiber · Fixed Wireless, DSL in parts of the area	5,000 / 5,000
Xfinity Cable	2,000 / 250
Radiate Holdings Cable	1,500 / 50
Sonic Telecom Fiber	1,000 / 1,000
Etheric Communications, LLC. Fixed Wireless	250 / 100
T-Mobile USA Fixed Wireless	100 / 20

May also be available: California Internet, Verizon.

Drinking Water

Source: EPA Safe Drinking Water Information System via ECHO, 2026 Q3 · EPA community water system boundaries v3.0, March 2026 · Last verified October 2026

Water System	CALIFORNIA WATER SERVICE - SAN MATEO private · serves 103,536 people
Water Source	Purchased surface water from SAN FRANCISCO REGIONAL WATER SYSTEM
Last State Inspection	Mar 2025
Lead	4 ppb (2023–2025) action level 15 ppb

Violations Reported to EPA

Water Quality	None last 10 years
Treatment and Procedure	None last 10 years
Monitoring and Reporting	None last 3 years

Results are for the whole water system as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.